package net.zoneland.zrdp.framework.security.filter;

import java.io.IOException;
import java.util.Objects;
import javax.annotation.Nonnull;
import javax.annotation.Resource;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import net.zoneland.zrdp.common.core.domain.model.LoginUser;
import net.zoneland.zrdp.common.utils.SecurityUtils;
import net.zoneland.zrdp.framework.web.service.TokenService;

/**
 * token过滤器 验证token有效性
 *
 * @author zonevue
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter
{
    @Resource
    private TokenService tokenService;

    @Override
    protected void doFilterInternal(final @Nonnull HttpServletRequest request,
                                    final @Nonnull HttpServletResponse response,
                                    final @Nonnull FilterChain chain) throws ServletException, IOException {
        final LoginUser loginUser = tokenService.getLoginUser(request);
        if (Objects.nonNull(loginUser) && Objects.isNull(SecurityUtils.getAuthentication())) {
            tokenService.verifyToken(loginUser);
            final UsernamePasswordAuthenticationToken authenticationToken =
                new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        chain.doFilter(request, response);
    }
}
